公开(公告)号：US20240347370A1

公开(公告)日：2024-10-17

申请号：US18542172

申请日：2023-12-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dongjoon Lee ,  Kyoungran Kim ,  Kwanghyeon Jeong ,  Myeongock Ko ,  Jaeuk Sim ,  Seongbeom Lee ,  Daesung Jung

IPC: H01L21/687 ,  H01L21/66 ,  H05F3/06

CPC classification number: H01L21/68742 ,  H01L22/14 ,  H05F3/06

Abstract: A carrier dechucking system includes a work carrier including a substrate having a first surface, an opposite second surface with a support film attached, and a ring frame surrounding the substrate. The work carrier is placed on a placement table having a support surface on which a lower surface of the support film is maintained, lifting pins configured to move the work carrier, an ionizer configured to eject ions to the lower surface, and a controller. The controller is configured to control the lifting pins to move the work carrier from the support surface to first and second levels, and to control the ionizer to remove static electricity charged on the support film from the support surface to the first level. At the first level, a surface voltage of the first surface of the substrate is lower than a surface voltage of the lower surface of the support film.